Three international non-governmental or intergovernmental organizations are named in the Convention to advise the Committee in its deliberations.
The International Union for Conservation of Nature (IUCN) is an international, non-governmental organization that provides the World Heritage Committee with technical evaluations of natural heritage properties and, through its worldwide network of specialists, reports on the state of conservation of listed properties. With more than 1000 members, IUCN was established in 1948 and is located in Gland, Switzerland.
The International Council on Monuments and Sites (ICOMOS) provides the World Heritage Committee with evaluations of cultural and mixed properties proposed for inscription on the World Heritage List. It is an international, non-governmental organization founded in 1965, with an international secretariat in Paris.
The International Centre for the Study of the Preservation and Restoration of Cultural Property (ICCROM) is an intergovernmental organization created to promote the conservation of all forms of cultural heritage, in every region of the world. Its mission is to provide Member States with the best tools, knowledge, skills and enabling environment to preserve their cultural heritage in all of its forms, for the benefit of all people. Through its work, ICCROM is contributing to the environmental, social and economic sustainability of communities.